Detailed description
2.14 Programming tips with STEP 7
Basic logic functions: PLC basic program solution line (P3 sl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
253
2.13.4
Message signals in DB 2
General
DB 2 allows the user to display the messages for individual signals on the operator panel. As
the lists of interface signals show, signals are divided into predefined groups. When a
message occurs, disappears or is acknowledged, the number entered in the message
number column is transferred to the HMI. Text can be stored in the HMI for each message
number.
References:
/LIS2/ Lists (Book2), see Section "PLC-Messages (DB 2)".
/IADC/ Commissioning Manual, Alarm and Message texts "Alarm text-files for HMI-
Embedded or for HMI-Advanced".
Note
The number of user areas can be parameterized via FB 1.
After the configuration has been modified (FB 1: MsgUser), DB 2/3 must be deleted.
2.14
Programming tips with STEP 7
2.14.1
General
General
Some useful tips on programming complex machining sequences in STEP7 are given below.
This information concentrates mainly on the handling of data type POINTER and ANY.
Detailed information about the structure of data types POINTER and ANY can be found in
Chapter "CPU register and storage of data" in STEP7 manual "Designing user programs".
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...